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US 2021/0280404 A1Published application
Preconcentrating of environmental contaminant analytes for ambient ionization mass spectrometry
AssigneeUniversity of New Hampshire
InventorsAnyin LI, Taoqing WANG
Life of this patent
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Abstract
The present disclosure relates to a method and system of preconcentrating analytes in a solution within an emitter for ionization mass spectrometry and analysis.
Claims18
A method for preconcentrating one or more analytes in a solvent for ionization mass spectrometry analysis comprising:
- providing an emitter containing an analyte solvent solution at a first analyte concentration in said solvent;
- evaporating said solvent from said emitter and increasing the concentration of said analyte in said emitter to a second concentration;
- and
- ionizing said analyte solution having said second concentration of said analyte and discharging an ionized analyte into a mass spectrometer for analysis.
1 more element
A method for preconcentrating analytes for ionization mass spectrometry analysis comprising:
- providing an emitter containing an analyte solvent solution containing an analyte at a first concentration in a first solvent;
- evaporating said first solvent from said emitter and increasing the concentration of said analyte in said emitter;
- introducing a second solvent into said emitter wherein said analyte is present at a second concentration in said second solvent;
- and
- ionizing said analyte solution having said second concentration in said second solvent and discharging an ionized analyte into a mass spectrometer for analysis.
2 more elements
A system for analyzing one or more analytes in a solvent for ionization spectrometry analysis, the system comprising:
- an emitter configured to hold an analyte solvent solution including a needle or tube inserted into said emitter wherein said needle or tube is connected to a source of drying gas to enter said emitter and evaporate solvent from said emitter to cause an increase in concentration of said analyte;
- an ion source that generates ions such that ions generated by the ion source are directed to interact with the emitter to cause the discharge of ionized analyte into a mass spectrometer for analysis.
Dependencies are inferred from the claim text.